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CHEMISTRY · Multi-part · A Level · Chemistry · Energetics · Energetics
Problem Suggest whether the following reactions are exothermic or endothermic:
(a) C(s) + O 2 (g) → CO 2 (g) \text{C(s)} + \text{O}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)} C(s) + O 2 (g) → CO 2 (g) H 2 O(l) → H 2 O(g) \text{H}_2\text{O(l)} \rightarrow \text{H}_2\text{O(g)} H 2 O(l) → H 2 O(g) HCl(aq) + NaOH(aq) → NaCl(aq) + H 2 O(l) \text{HCl(aq)} + \text{NaOH(aq)} \rightarrow \text{NaCl(aq)} + \text{H}_2\text{O(l)} HCl(aq) + NaOH(aq) → NaCl(aq) + H 2 O(l) Browse the problem library